--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xml/xmldomandxpath/src/xmlengineserializer/xmlenggzipbufferoutputstream.h	Thu Dec 17 09:29:21 2009 +0200
@@ -0,0 +1,112 @@
+// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// Interface class describing class that may be used as
+// output stream for dom tree
+//
+
+
+
+/**
+ @file
+ @internalComponent
+ @released
+*/
+#ifndef XMLENGCGZIPBUFFEROUTPUTSTREAM_H
+#define XMLENGCGZIPBUFFEROUTPUTSTREAM_H
+
+#include <xml/dom/xmlengoutputstream.h>
+#include <ezbufman.h>   //MEZBufferManager
+#include <ezgzip.h>     //TEZGZipHeader
+
+class CEZCompressor;
+
+
+
+class CXmlEngGZIPBufferOutputStream : public CBase, public MXmlEngOutputStream, public MEZBufferManager
+	{
+	public:
+        static CXmlEngGZIPBufferOutputStream* NewLC(RBuf8& aOutputBuffer);
+
+        static CXmlEngGZIPBufferOutputStream* NewL(RBuf8& aOutputBuffer);
+
+	    ~CXmlEngGZIPBufferOutputStream();
+	    
+	    /**
+	     * Get last error
+	     */
+		TInt CheckError();
+
+        /**
+         * Implementation of MXmlEngOutputStream interface.
+         */
+	    TInt Write( const TDesC8& aBuffer );
+		TInt Close();
+        
+        /**
+         * Implementation of MEZBufferManager interface.
+         */
+	    void InitializeL(CEZZStream& aZStream);
+	    void NeedInputL(CEZZStream& aZStream);
+	    void NeedOutputL(CEZZStream& aZStream);
+	    void FinalizeL(CEZZStream& aZStream);
+
+
+    protected:
+	    CXmlEngGZIPBufferOutputStream(RBuf8& aOutputBuffer);
+	    void ConstructL();
+
+    private:
+        void WriteL(const TDesC8& aBuffer);
+		void CloseL();
+			
+	private:
+	    /**
+	     * Last error
+	     */
+	    TInt iError;
+	    
+	    /**
+	     * Default input buffers size.
+	     */
+	    static const TInt KDefaultInputBufferSize = 4096;
+	    
+	    /**
+	     * Output buffer size. It determines, how often output data will be written
+	     * to disk. (it's written to disk, when buffer is full.
+	     *
+	     */   
+	    static const TInt KOutputBufferSize = 0x8000;
+	    
+	    RBuf8 iOutputDescriptor;
+	    RBuf8 iInputDescriptor;
+	    RBuf8 iOldInputDescriptor;
+	    
+	    /**
+	     * Engine of GZiping
+	     */
+	    CEZCompressor* iCompressor;
+
+	    RBuf8& iOutputString;
+        /**
+         * State of the object.
+         */	    
+	    TBool iNoInputNeeded;
+	    TBool iKeepGoing;
+	    TBool iCloseInvoked;
+	    
+	}; 
+
+
+
+#endif /* XMLENGCGZIPBUFFEROUTPUTSTREAM_H */